1 /*
2  * Copyright (c) 2019 NVIDIA Corporation.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: Thierry Reding
23  */
24 
25 #include "priv.h"
26 
27 static void
28 gp10b_ltc_init(struct nvkm_ltc *ltc)
29 {
30 	struct nvkm_device *device = ltc->subdev.device;
31 	struct iommu_fwspec *spec;
32 
33 	nvkm_wr32(device, 0x17e27c, ltc->ltc_nr);
34 	nvkm_wr32(device, 0x17e000, ltc->ltc_nr);
35 	nvkm_wr32(device, 0x100800, ltc->ltc_nr);
36 
37 	spec = dev_iommu_fwspec_get(device->dev);
38 	if (spec) {
39 		u32 sid = spec->ids[0] & 0xffff;
40 
41 		/* stream ID */
42 		nvkm_wr32(device, 0x160000, sid << 2);
43 	}
44 }
45 
46 static const struct nvkm_ltc_func
47 gp10b_ltc = {
48 	.oneinit = gp100_ltc_oneinit,
49 	.init = gp10b_ltc_init,
50 	.intr = gp100_ltc_intr,
51 	.cbc_clear = gm107_ltc_cbc_clear,
52 	.cbc_wait = gm107_ltc_cbc_wait,
53 	.zbc = 16,
54 	.zbc_clear_color = gm107_ltc_zbc_clear_color,
55 	.zbc_clear_depth = gm107_ltc_zbc_clear_depth,
56 	.zbc_clear_stencil = gp102_ltc_zbc_clear_stencil,
57 	.invalidate = gf100_ltc_invalidate,
58 	.flush = gf100_ltc_flush,
59 };
60 
61 int
62 gp10b_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
63 	      struct nvkm_ltc **pltc)
64 {
65 	return nvkm_ltc_new_(&gp10b_ltc, device, type, inst, pltc);
66 }
67